aestheticsymbols
Use in a combo

White sun with rays copy & paste

☼ is white sun with rays, a plain-text Unicode symbol from the Miscellaneous Symbols block. On Aesthetic Symbols it lives in the stars & celestial collection, tagged sun. As plain text it takes on the font and colour of wherever you paste it — a bio, a username, a caption or a stream title.

Unicode
U+263C
HTML entity
☼
CSS content
\263C
JavaScript
\u{263C}
UTF-8 bytes
E2 98 BC
Made of

U+263C ☼ · Miscellaneous Symbols

Will it show up? · Long-established text symbols

Plain-text characters from blocks that mainstream desktop and mobile fonts have covered for years. These are the safe ones.

Worked out from how each character is encoded, not from a test on a real device.